Copyright © 2007-2009 by Apple Inc.  All Rights Reserved.
Quartz Composer Application
AnimatedCompositionLayer        A basic application that demonstrates how to animate 
                    composition input parameters on a Core Animation composition 
                    layer through transactions.
Sample Requirements         The project was created using the Xcode running under 
                    Mac OS X 10.6.x or later. The supplied Quartz Composer 
                    compositions were created using the Quartz Composer editor 
                    running under Mac OS X 10.6.x or later.
About the sample            The sample uses a Quartz Composer composition that generates 
                    multiple circles. The composition is set up as a Core Animation 
                    layer.  As the user presses a mouse button, the Core Animation 
                    generates new colors and sizes for the circles. These values 
                    are used as the new input parameters for the composition, and 
                    the user will see the changed sizes and colors of the circles.
Using the Sample            Open the project using the Xcode editor which can be found 
                    in /Developer/Applications. Build the project and run. Press 
                    the mouse button to change the size and color of the circles.
Installation                n/a
Changes from Previous Versions      n/a
Feedback and Bug Reports        Please send all feedback about this sample to:
                    Please submit any bug reports about this example to